Yarn-tension device.



,13. SYKES. YARN TENSION DEVICE. v APPLICATION FIIED 1111111.13, 1911,

1,014,980, Patented Jan. 16, 1912.

:UQQQQNQRQ EDWIN SYKES, 0F HUDDE-RSFIELD, ENGLAND.

YARN-TENsIoN DEVICE.

Specicaton of Letters Patent..

Application led March 13, 1911. Serial No. 614,010.

To all whom it may concern:

Be it known that I, EDWIN SYKES, a subject of King George V of GreatBritain, residing at Huddersfield, in the county of York, England, haveinvented certain new and useful Improvements in Yarn-Tension Devices, ofwhich the following is a specification.

My invention relates to means for putting tension on to yarn such as areemployed in winding and similar machines in which yarn' is dealt with,and my object is to provide an improved device for the purpose.

According to my invention, the yarn is caused to pass around two seriesor sets of pins or studs,l one set secured to a disk having segmentalslots therein and capable of rotary movement within the limits of theslots on a fixed stud, and the other set or series secured to a fixeddisk and extending through the slots in the movable disk, the peripheryof which is suitably weighted at one side. The yarn or thread is passedalternately around the two sets of pins in a sinuous course, and theaction of the weight on the periphery of the movable disk tends topartly rotate same in one direction to carry the pins thereon away fromthe pins on the stationary disk and the extent of movement of themovable disk under the gravity action ofthe weight ives the necessarytension to the yarn t roughout the winding or like operation.

.In the accompanying drawing z-ligure 1 is a front elevation of atension device embodying my improvements, and Fig. 2 is an edge or sideview thereof.

Referring to the drawing, 1 represents a xed disk having a series ofpins 2 projecting from the face thereof.

3 represents a movable disk, loosely pivoted at 4 concentrically withand in front of the disk 1 and having. a series of segmental slots 5through which the pins 2 on the fixed disk project. Intermediate theslots 5 on the movable `'disk are a series of pins 6 which alternatewith the series of pins 2. An adjustable weight 7 is connected inanysuitable manner, andV in the instance shown by a hooked wire 7 to theperiphery of the movable disk 3 the tendency of thev weight being torotate the movable disk within the limit of the-segmental slots 5 iin adirection contrary to the arrow A, Fig. -1..

The yarn 8, to which` tension is to be applied, is passed alternatelyaround the pins 2 and 6 taking a sinuous course, as shown, the tensionbeing obtained by the pull on the yarn holding up the movable disk inthe direction of the arrow A against the gravity action of the weightwhich is tending to rotate the said disk inthe opposite direction. Thefixed disk is provided on opposite sides of its center with suitableguide eyes 9 to guide the yarn and maintain it in its engagement withthe pins. Means such as the handle 10 may be provided on the movabledisk ,to rotate same to set the pins 6 apart from the stationary pins 2to enable the yarn to be passed between same without the necessity ofthreading the yarn around the pins, the release of the disk causing theyarn to be engaged by the pins in the manner shown. If desired', insteadof employing weights as above set forth the fixed and movable disksmight be connected by a spring'whose tension is adjustable, the pull onthe yarn tending to hold up the movable disk against the pull of thespring.

The tension device constructed as above Patented Jan. 16,1912.

set forth may be applied in any machines in which it is necessary to puttension on to a yarn or thread. i

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is v In a yarn tension device, the combination,with a stationary disk, guide eyes projecting from the said disk atopposite sides of its center, and two rows of pins arranged radiallybetween the guide eyes in line with each other and project-in from theface of the disk; of a movable disk pivoted concentric with thestationary disk and provided with curved slots which clear the said pinsand which limit the motion of the movable disk by contact with the saidpins, two rows EDWIN SYKES. Witnesses:

THOMAS H. BARRoN, ELSIE M. GLEDHILL.

